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November 22, 2014

November 22, 2014

Posted by **Jarin** on Thursday, August 9, 2007 at 7:23am.

thx

According to your definition

Average Cost = C(x)/x

=125/x + 30 + 2x^(-1/3)

d(Average Cost)/dx = -125/x^2 - (2/3)x^(-4/3)

set this to zero and solve

(I got x=32.75, but x should be a whole number, so x = 33)

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